Frequency Response:20Hz-15Khz FM Transmitter Frequency: 87.5-108Mhz Supported Format: MP3, WMA Rated Operating Voltage:12 V Ultimate Operating Voltage: 9-26 V SNR Ratio: > 60dB Left/ Right Channel Separation: > 60dB Bluetooth Version: 2.0 Bluetooth Transmission Distance: 10-15 meters 1. Adjustable to any angles,and fit to all types of vehicles 2. Full frequency FM transmitter 3. Digital display 4. Supports MP3 player audio input 5. Supports U disk player 6. Supports MP3/WMA music format 7. Supports automatic power-off memory function 8. With power off switch(USB direct connect) 9. Bluetooth answer,hang up,reject,redial calls etc. 10. Bluetooth stereo music play 11. Echo cancellation and noise suppression (CVC) technology 12. Support listening Cell phone's music and answering calls via bluetooth 13.This device transmit signal by wireless method, no need to modify anything in car. It can be used both as the music player in entertainment purpose or hands-free car jut for the safety driving purpose Brand other SKU OT776EL10B4EKNAFAMZ-246651